From 4276d0aad715e20a3e66dff9fa21dfdbb616d567 Mon Sep 17 00:00:00 2001
From: Krzysztof Rybka <krzysztof.rybka@gmail.com>
Date: Fri, 24 May 2019 13:20:43 +0200
Subject: Move server names to a constant

---
 lib/rack/handler.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/rack/handler.rb b/lib/rack/handler.rb
index bc0a3bf8..024a855b 100644
--- a/lib/rack/handler.rb
+++ b/lib/rack/handler.rb
@@ -45,6 +45,9 @@ module Rack
       raise LoadError, "Couldn't find handler for: #{server_names.join(', ')}."
     end
 
+    SERVER_NAMES = %w(puma thin falcon webrick).freeze
+    private_constant :SERVER_NAMES
+
     def self.default
       # Guess.
       if ENV.include?("PHP_FCGI_CHILDREN")
@@ -54,7 +57,7 @@ module Rack
       elsif ENV.include?("RACK_HANDLER")
         self.get(ENV["RACK_HANDLER"])
       else
-        pick ['puma', 'thin', 'falcon', 'webrick']
+        pick SERVER_NAMES
       end
     end
 
-- 
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